Sweeper



G. w. RAUCH. 1

.SWEEPER. f APPLICATION Fl-LE'D Dic. 7; 191s. 1 33; 3,6'7"7,lv Patented Mar. 16,1920.

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swEEPER. APPLICATION FILED DE@ 1,'1918. '1,333,677 l r y Patented Mar. 16,1920.

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W. RAUCH.

swEEPER.

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WITNESS n. m ,Tf T. A

Specication of Letters Patent.

Patented Mar. 1,6, 1920.

Application med December 7. 191s. smal mi. tear/o4.y s

/ "/o all whom 'zt may camera -Bc .it known that I, GEORGE lV. RAUGH, a cltlzen of the United States, residlng at yOri-ville. in the county of Wayne and State of Uhio, have invented new and useful vIfnrovements in Swce iers, ot' which `the -fol- P lowingis a specification.

This invention relates to .in'lprovements in swcepers and has a special relation to vacuum or motor operated sweepers.

The object of the present invention is to provide a sweeper of this character, which is of simple and duralble'construction and in which the motor which is utilized to operatc thc fau is protected from the action of v the dirt. Another object isl to provide a sweeper having a brush which may be adjusted from thc outside of the sweeper casingvwithout lifting' the latter from its operative position, thereby saving time and in suring a proper adjustment ofthe brush.

. Another object is to provideinovel means for regulating the distance ofthe nozzle or dirt opening from the floor, the said means comprising adjustably mounted supportmg `rollers which regulate the height of the casing or nozzle. Other objects and advantages of the invention will appeal' as the following description is read in connection ,with the .ac-

companying drawings.

In thef drawings: j

Figure 1 is a side elevation of a sweeper embodying the present' invention.

Fig.`2 1s a front viewof the same.

Fig 3 isa vertical section "taken from' the frontto the rear of the sweeper.

Fig. 4 is a similar view taken at right fangles to Fig. 3.

.Fig 5 is lan enlargedl verticalsectional view through the adjustable brush bearing. Fig. 6 isan ienlarged transverse sectional view through this bearing. V

Fig. 7 is a detail section illustrating the securing` means `for the adjustable yoke which carries`the supporting rollers. y

Fig. 8 is a detailA view of the filtering screen securing means.

Referring 1n detail to the drawings, like characters of reference denote` corresponding parts throughout the several views.

In the embodiment of the invention illusi-v trated, there is provided a casing 10, which casing is provided with the usual opening or nozzle 11 for the passage-of dirt or dust.

Securedto each side of the end of the casing opposite the nozzle 11, is asu )porting roller 12, the latterbeing mounted short shaft 13. Mounted for pivotal movement fupon each of the shafts 13, is one end 'of a yoke 14 which extends forwardly or toward the` nozzle end of the casing and across said end. Carried lby the yoke andy positioned adjacent the nozzle `or forward end of the casing are su porting rollers 15,

so that therc'are provide( four rollers which act to support the sweeier in operation. The yoke 14 is capable o adjustment upon the adjustment upon the -shafts A13 so as to bring the forward `or nozzle end of the -casing closely to or farther away from the fioor and in order to hold the yoke in 'the desired position, there is provided a set screw 16,- which .is carried v'by the casing and which operates in a slot 17 provided in the yoke.

-Mounted within the casing is abrush 18, which is journaled in bearings at each end of the casing. These bearings are adjustable and consist of plates 19 which are slidable in guides 20, the adjustment f the saidA plates being regulated through the medium of screws 21 extending 4upon the outside of the easing. This permits of the adjustment of the brush so as to re late its contact upon a 'nis preferably rectangular in form. This l withv the fioorjwithout 1i ting the sweeper. 'i

The lates 19 are engaged b -iat springs by means of 22, w ose tension is regulat a" screw 23. The brush 18 isconnected to the bearing Iplates 19 by means of a stud 24, which extends inward] toward the brush and en sthe ends t ereof through,

the medium o `a dust proof anti-friction bearing 25 which is capalble of adjustment to take up wear. 4 I l Mounted upon the brush at a point approximately midway between its ends, is a metal disk. 26, which is engaged-by a fiber roller 27, theI latter being mounted upon the end of a shaft 28 of the motor 29. Bv this means' the brush is rotated, the roller 27 frictionally engaging the disk 26, this drivingmeansrmittini'g of the 'adjustment of themirush 1n the 'manner previously menlos The motor 29 is preferably of the'electric type andl is engaged in the usual manner to a suitable source of energy and is controlled. by a switch 30. The motor 29 also operates a fan for the purpose ofcreating suction through. the nozzle 1l and deposits the same within the casing, and as the motor '29 is positioned above the casing, it is protectedv from the action of the dirt.

Located at the rear of the machine, or at the end of thec'asing opposite the nozzle 11,'is an opening 82 Which is surrounded by frame 33, the latter being covered vvith a screen and dust proof cloth so as to permit of the passage of air and at the same time retain the dirt and dust Within the casing. The frame 33 is suitably secured to the casing and may be provided with a suitable fastening device to permit ofthe frame lbeing used as a door forthe removal of the contents of the casing. The frame 33 is-'provided with a felt band or a lining 34 so as to provide a dust proof j0int.

The invention is susceptible of various changes in its formproportions and minor details of construction, and the Writer is herein reserved to vmake any changes that cluding a brush located near one end of the casing, of supporting Wheels for said casing, a frame pivotally mounted upon the axles of the Wheels atfone end of the casing and carrying wheels at the opposite orfbrush end thereof, and means for adjusting the frame to regulate -oontact of the brush with the floor. l

2. A- sweeper comprising a casing provided With an opening, motor operated means for causing a suction through said opening, a Ibrush located within the casing`V andLextending through said opening, a slide adjust-ably mounted upon the outside of the Casing at each end of the brush, a bearing carried by each of said slides for receiving` the brush,v a reduced neck for said bearing for movement in an opening in the casing and a spring surrounding said neck; and en gageable with the casing.

In testimony whereof I ailix my signature.

GEORGE W. RAUCH. 

